Chook2 said...I'm curious??????


Can you show us a close up of the rail runners/bearing system.
I am guessing its probably based on something like rollerblade wheels- easy to find and mount onto a lightweight frame, a couple of wheels on the top of the rail and one on each side to stop the wheel assembly "falling off"
put a set up like that at each corner of a rectangular chassis with diagonal braces to stop any twisting of the whole chassis.
It would be pretty light and very stable being on the rails.
Stephen.